Technician Class License Exam Questions

Subelement T4

Amateur radio practices and station setup

Question Display Options:
Group T4A Station setup: connecting microphones; reducing unwanted emissions; power source; connecting a computer; RF grounding; connecting digital equipment; connecting an SWR meter
T4A01 Which of the following is true concerning the microphone connectors on amateur transceivers?
T4A02 How might a computer be used as part of an amateur radio station?
T4A03 Which is a good reason to use a regulated power supply for communications equipment?
T4A04 Where must a filter be installed to reduce harmonic emissions from your station?
T4A05 Where should an in-line SWR meter be connected to monitor the standing wave ratio of the station antenna system?
T4A06 Which of the following would be connected between a transceiver and computer in a packet radio station?
T4A07 How is a computer's sound card used when conducting digital communications using a computer?
T4A08 Which type of conductor is best to use for RF grounding?
T4A09 Which of the following could you use to cure distorted audio caused by RF current flowing on the shield of a microphone cable?
T4A10 What is the source of a high-pitched whine that varies with engine speed in a mobile transceiver's receive audio?
T4A11 Where should the negative return connection of a mobile transceiver's power cable be connected?
T4A12 What could be happening if another operator reports a variable high-pitched whine on the audio from your mobile transmitter?
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Group T4B Operating controls: tuning; use of filters; squelch function; AGC; repeater offset; memory channels
T4B01 What may happen if a transmitter is operated with the microphone gain set too high?
T4B02 Which of the following can be used to enter the operating frequency on a modern transceiver?
T4B03 What is the purpose of the squelch control on a transceiver?
T4B04 What is a way to enable quick access to a favorite frequency on your transceiver?
T4B05 Which of the following would reduce ignition interference to a receiver?
T4B06 Which of the following controls could be used if the voice pitch of a single-sideband signal seems too high or low?
T4B07 What does the term “RIT” mean?
T4B08 What is the advantage of having multiple receive bandwidth choices on a multimode transceiver?
T4B09 Which of the following is an appropriate receive filter bandwidth to select in order to minimize noise and interference for SSB reception?
T4B10 Which of the following is an appropriate receive filter bandwidth to select in order to minimize noise and interference for CW reception?
T4B11 Which of the following describes the common meaning of the term "repeater offset"?
T4B12 What is the function of automatic gain control or AGC?
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